In order for someone to get onto Platform Nine and Three-Quarters, they must walk directly at the apparently solid metal ticket box dividing Platforms Nine and Ten.[1] There is a guard stationed just outside the entrance, in order to regulate entries and exits from the platform.[2]

1993

In 1993, the Weasleys took Harry to the Platform again. Arthur Weasley hoped to talk to Harry about Sirius Black, but Harry had already overheard Arthur talking about it to his wife.[7] Once the school year ended, Harry and his classmates returned to the Platform, where he told Vernon Dursley about his godfather, "a convicted murderer, but he's broken out of wizard prison and he's on the run".[8]